Ensure No World Writable Folders Exist in the Library Folder

高レベル 2自動macos

説明

Software sometimes insists on being installed in the /System/Volumes/Data/Library directory and has inappropriate world-writable permissions. This software could be compromised with the folder(s) being world-writable by unauthorized actions. Folders in /System/Volumes/Data/Library should not be world-writable. The audit check excludes folders where the sticky bit is set by Apple. These folders are required by the operating system to run and should not be modified. Some security vendors use a world-writable folder for their security extension tool. This will be considered compliant due to the tools themselves not allowing a user to write to their folders. This is against the standard practice on POSIX systems. It is considered compliant here because of additional security vendor controls that are controlled through industry standard mitigations.

チェック方法

監査方法: シェルコマンド

shell

[ -d /System/Volumes/Data ] || exit 1
/usr/bin/find /Library -type d -perm -002 ! -perm -1000 ! -xattrname com.apple.rootless 2>/dev/null | /usr/bin/grep -vE "/Library/AppStore" | /usr/bin/wc -l | /usr/bin/xargs

期待される出力: 0

修正方法

修正方法: ガイダンスまたは IaC パッチ

Terminal Method: Run the following command to set permissions so that folders are not world-writable in the /System/Volumes/Data/Library folder: % /usr/bin/sudo IFS=$'\n' for libPermissions in $(/usr/bin/find /Library -type d -perm -002 ! -perm - 1000 ! -xattrname com.apple.rootless 2>/dev/null); do /bin/chmod -R o-w "$libPermissions" done

プロパティ

オペレーティングシステム: macos-14
タグ: macossonoma
参照: CIS Apple macOS 14.0 Sonoma Benchmark v3.1.0 - 5.1.7 Ensure No World Writable Folders Exist in the Library Folder

このホストをチェック

監査が許可されているマシンで実行してください。スキャンは読み取り専用です。

shell

tmaegis scan --target macos --level 2